James long



(No Model.)

J. LONG.

CONSTRUCTION OP VBSSELS. n l No. 250,373'. Patented Deo. 6,1881.

N4 PETERSA mmmhnyapim. washington. uc.

UNITED STATES PATENT OFFICE.

JAMES LONG, OF BRIGHTON, COUNTY OF SUSSEX, ENGLAND.

CONSTRUCTION OF VESSE-LS.

SPECIFICATION forming part `of Letters Patent No. 250,373, dated December 6, 1881.

Application iiled November 18, 1880.

To all whom it may concern:

Be it known that I, JAMES LONG, a subject of the Queen of Great Britain and Ireland, residing at Brighton, in the county of Sussex, Kingdom of Great Britain and Ireland, have invented new and useful Improvements in the Construction of Ships and Vessels, (for which I have obtained 'a patent in Great Britain, No. 5,042, bearing date December 9, 1878,) of which the following is a specification.

According to this invention the body or hull of-the ship or vessel has combined with it and is supported by pontons or airtight metal chambers of cylindrical or other convenient shape, arranged around the body or hull outside the same or exterior to the skin-plates.

Referring to the accompanyingsheetof drawings, Figure l is a side elevation of a vessel embodying my invention. Fig. 2 is a plan, partly in section; and Fig. 3 is a transverse section.

a 0l a are cylindrical chambers formed or applied round the hull of the vessel for supporting it in the Water. Such cylinders are very easy of construction, and they impart great buoyancy to the ship or vessel to which they are attached or of which they form part. They support the body or hull and protect it from injury. The ship or vessel is thus rendered safe and unsinkable. l

h bis a shelf beneath the cylinders a, supporting blocks or iilling-pieces c c between the (No model.) Patented in England December 9, 1878.

lower halves of the cylinders, forming a fair surface to pass through the water. Sometimes, in place of employing the filling-pieces c, I so form the pontons or chambers 0l that they lie close together up to the water-line of the vessel or deck level.

al is a guard-plate in iront, forming a fair surface from the cut-water to the first cylinder.

The bottom of the vessel is formed double, as shown in Fig. 3, which construction furnishes air-chambers, which extend from stem to stern without partition, except in a longitudinal line where the keel cuts it in half.

Such Vessels may be provided with screwpropellers, or paddle-wheels, or sails, or other means of propulsion.

It will be evident pontons or air-tight metal chambers as above described may be applied to the hulls of existing vessels.

What I claim is- The combination, with the hull of a ship, oi' pontons a, of cylindrical form, rigidly attached with their axes transverse to the length 0f the ship, and with shelf b, guard-plate d, and filling-pieces or blocks c, as herein setforth.

JAMES LONG.

Witnesses:

F. J. BROUGHAM, 7 Whitehall Place, London, S. W. J AMES G. S'roKEs, 7 Whitehall Place, London,

S. W., Olerh to Mr. W. Lloyd Wise. 

